Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer
SignalPipe
Overview
Description from the maker (original English)
Buying-intent judgement for AI agents: a three-judge panel scores any text as buyer or not.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
- UsageiVery new★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs in the cloud
- Transport: Streamable HTTP
- Category: Other
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on the maker’s server: what you ask it goes through their server.
- The registry lists no key to fill in.
You need
- Runs in the cloudNothing to install; it connects over the internet
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Works in Claude on the web, desktop and mobile:
- Open Settings → Connectors
- Press Add custom connector
- Paste the address below and press Add
- If it asks you to sign in, sign in with the maker
https://api.signalpipe.io/mcpRun this in your terminal
claude mcp add --transport http signalpipe https://api.signalpipe.io/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"signalpipe": {
"url": "https://api.signalpipe.io/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"signalpipe": {
"type": "http",
"url": "https://api.signalpipe.io/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
- Open ChatGPT on the web → Settings → Connectors (Apps)
- Press Create or Add (some plans need Developer mode under Advanced first)
- Paste the address below, give it a name and save
- If it asks you to sign in, sign in with the maker
https://api.signalpipe.io/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
We have not read this server’s tool list yet; we check endpoints in rotation.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account AbYousef739, which owns the repo
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- … Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
- … Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
- … Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint
Compared with others in Otheri
- More stars than 0% of the other 18490 servers in this category
- Published to the registry more recently than 54% of the other 18490 servers in this category
- Basic checks equal to or better than 100% of the other 18490 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is SignalPipe safe?
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
Is it still maintained?
The GitHub repo last changed –, and the latest version (2.1.3) reached the registry 40 days ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
What can I use instead?
In the same category: Spec Driven Development, Remote Desktop Commander, Talexio MCP by usefulapi
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Remote Desktop Commander
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Runs in the cloud✓ desktopcommander.app
Talexio MCP by usefulapi
Read employees, approved pay lines, approved time off and shift templates in Talexio.
Runs in the cloud✓ usefulapi.io
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
SignalPipe
Agentic sales pipeline — buying-intent detection, swarm-scored lead qualification, and prospect nurturing for OpenClaw agents.
SignalPipe judges whether the author of a post, email or ticket wants to buy. Your agent brings the text from anywhere it reads, including X through your own X API access, and an optional scout reads the RSS or Atom feeds you choose. Three independent judges rule on every borderline signal, each kept lead gets a drafted reply that answers what the person actually asked, and only real leads reach you for approval. Works with any OpenClaw-compatible agent — or connect directly via MCP from Claude Code, Cursor, or Windsurf.
signalpipe.io · Smithery · Glama
What It Does
Top of funnel — Signal Acquisition (Mantidae): Your agent brings text from anywhere it reads, and the optional scout reads the RSS or Atom feeds you choose every cycle. Clear-cut posts are decided on content alone; borderline ones go to three independent judges (Skeptic, Analyst, Optimist), and when they split you see it. Only real leads reach your queue, each with a drafted reply that answers what the person asked and mentions your product only when they asked for a tool.
Competitor-switch posts are hard-floored and always reach your queue regardless of score.
Mid/bottom of funnel — Nurture Engine: Tracks every prospect's temperature (0–100) across 14 signal types. Automatically selects the right persona (Educator → Consultant → Closer → Re-engager). Remembers objections permanently — if someone said the price is too high, that angle is never repeated. Never spams. One-directional mode transitions.
Execution — Sender (v2.0): The brain scores, drafts, and approves; the plugin can now also send. An optional background sender holds a live stream open to the brain, receives the missions you've already approved, and posts reddit_comment / reddit_dm on Reddit with your own credentials. *The math runs on us, the sending runs on you* — your Reddit credentials and LLM keys never reach SignalPipe. twitter_reply is handled by the standalone signalpipe-daemon. The sender is opt-in: set the REDDIT_* env vars to enable it, or ignore it entirely and stay MCP-only. Private messages go only to someone who asked for one: Reddit and X both require the recipient's consent before an app sends one. SignalPipe never auto-sends a DM or an X reply; each waits for your approval.
Tools (29 total)
Signal Acquisition
| Tool | What it does |
|---|---|
signalpipe_get_missions | List pending leads awaiting review — score, role, channel, snippet, draft. Lean by default; opt into include_context=true only when drafting. |
signalpipe_draft_mission | Get the drafting payload for a single mission so the host LLM can write the reply itself (BYOK path) |
signalpipe_upload_draft | Upload a host-LLM-written draft to a mission |
signalpipe_approve_mission | Approve a lead and queue it for outreach |
signalpipe_reject_mission | Reject a lead with a reason — teaches the per-station RL loop (penalty size adapts to the reason; demotes one noisy feed without dragging the rest of the product down). Don't use this when the post is just gone — use signalpipe_delete_mission instead. |
signalpipe_delete_mission | Hard-delete a mission row — silent cleanup, no learning signal. Companion to reject. Canonical case: the post was deleted / 404'd / removed before you could reply. |
signalpipe_mark_sent | Record that you replied by hand, so follow-ups know what was said and the source feed gets the credit |
signalpipe_scout_now | Trigger an on-demand scouting run across your active products |
signalpipe_get_products | List all configured products |
signalpipe_suggest_anchors | Draft buyer-voice anchor sentences for a product, for you to edit before adding it |
signalpipe_add_product | Register a new product to monitor — describe it in buyer language |
signalpipe_update_product | Edit a product's anchors or description, or pause and resume it |
signalpipe_add_station | Add an RSS feed (a forum, a Q&A site) or an HN keyword feed for a product. Reddit ends its RSS feeds on 13 November 2026 |
signalpipe_list_stations | Your feeds with a health readout: posts captured, posts that reached your queue, and what to change |
signalpipe_update_station | Pause, resume, rename or re-point a feed |
signalpipe_remove_station | Remove a feed (one with history is switched off instead, to keep it) |
signalpipe_reload_products | Hot-reload product cache after changes — no redeploy needed |
Nurture Engine
| Tool | What it does |
|---|---|
signalpipe_track_prospect | Log a signal from a prospect, update their temperature |
signalpipe_record_reply | Send a prospect's reply to the brain, which reads it: intent, objections, do-not-contact, and whether they invited a private message |
signalpipe_get_message | Generate the next outreach message via the backend LLM |
signalpipe_get_message_prompt | Get the full prompt + context so the host LLM writes the message (BYOK path) |
signalpipe_record_message | Record a host-LLM-written message as sent |
signalpipe_get_pipeline | View the full prospect pipeline sorted by temperature |
signalpipe_score_signal | Universal scorer — paste any text (Gmail, Slack, Discord, Telegram, LinkedIn, transcripts) and get back the same score + classification + drafting context the scout produces for Reddit/HN posts. For a reply or comment, pass the post it answers as context. panel_verdict says what the judges decided. SignalPipe never touches the source channel; your host agent does. |
Sender
Reddit-only; requires the optional REDDIT_* env vars. Contains no scoring or drafting — it only posts pre-approved missions with your credentials.
| Tool | What it does |
|---|---|
signalpipe_start_sender | Start the background sender — streams approved missions and posts reddit_comment / reddit_dm with your own Reddit creds. Supports dry_run. |
signalpipe_stop_sender | Stop the background sender; unsent approved missions stay queued on the brain |
signalpipe_sender_status | Report sender state — running / connected, sent / failed / skipped counts this session, plus brain-side queue depth |
Reader
Reads feeds from this machine. No credentials and no extra dependencies.
| Tool | What it does |
|---|---|
signalpipe_read_feeds | Read the client-marked stations from this machine and send each feed page to the brain for judging. One pass in the background by default (a minute per feed); every_minutes keeps reading on an interval, stop ends it. |
signalpipe_preview_station | Check a feed for buyers before adding it: read here, judged by the brain, nothing saved. Answers VIABLE, MARGINAL, ON-TOPIC NOT IN-MARKET, NO BUYERS or NO DATA. |
MCP Support
SignalPipe exposes all tools as an MCP server — no OpenClaw plugin install needed.
Connect from Claude Code, Cursor, or Windsurf — add this URL to your MCP config:
https://api.signalpipe.io/mcpAuth: Authorization: Bearer YOUR_OPERATOR_KEY
Once connected, ask your agent:
- *"Show me my leads"*
- *"Reject the first one — it's a founder promoting their own tool"*
- *"Who should I follow up with today?"*
Live Session Example
A typical morning lead review inside your OpenClaw agent or Claude.ai via MCP.
You: Show me today's leads.
→ signalpipe_get_missions3 missions pending reviewMISSION 1 · score: 91 · role: CLOSER · competitor_flag: true Product : AcmeTool Channel : reddit_dm Handle : u/frustrated_dev99 Snippet : "Their pricing just doubled again. Done. Need a replacement ASAP." Draft : "Saw your post — we built AcmeTool for exactly the gap you're describing. Teams typically switch in under a week. Worth a quick look? Happy to show you how it compares."
MISSION 2 · score: 68 · role: ADVISOR · competitor_flag: false Product : AcmeTool Channel : reddit_dm Handle : u/ops_lead_rachel Snippet : "Looking for a tool to automate repetitive ops workflows. Budget is flexible, need something the team actually uses." Draft : "The part about 'something the team actually uses' is the real problem to solve — most tools fail there, not on features. AcmeTool is built around that constraint. Happy to walk through a real team setup if useful."
MISSION 3 · score: 24 · role: EDUCATOR · competitor_flag: false Product : AcmeTool Channel : reddit_dm Handle : u/just_browsing_thx Snippet : "Saw an ad for workflow tools. Not really something I need right now" Draft : [Swarm low-confidence — auto-rejected]
Agent: 2 leads ready. Lead 1 is a competitor-switch signal, score 91 — Closer draft, proposes a direct next step. Lead 2 is a genuine need with flexible budget, score 68 — Advisor draft, leads with their real problem. Lead 3 was auto-rejected by the swarm. Approve 1 and 2, or edit first?
You: Lead 1 is good, approve it. For lead 2 change the draft to: "Hey Rachel — we solve exactly this. Most ops teams are running automations within a day. Want me to show you how a team like yours uses it?"
→ signalpipe_approve_mission (msn_8f3a — swarm draft unchanged)→ signalpipe_approve_mission (msn_2b91 — user-edited draft)
✓ msn_8f3a queued for outreach ✓ msn_2b91 queued for outreach (your version)
You: Rachel just replied — she's interested. Log it.
→ signalpipe_track_prospecthandle : u/ops_lead_rachel channel : reddit_dm signal : replied mission_id: msn_2b91
{"prospect_id": "pro_7f2c", "handle": "u/ops_lead_rachel", "temperature": 45, "mode": "sales", "persona": "Consultant", "follow_up_in": "2–3 days" }
Agent: Rachel is in Sales mode, temperature 45. Consultant persona active — qualify and show fit, no hard sell yet.
You: Who's hottest? Generate a message for them.
→ signalpipe_get_pipeline→ signalpipe_get_message (prospect_id: pro_sarah_cto)
{"message": "Sarah — you've seen how it works. Happy to answer any last questions before your team makes a call. What's the main thing you're still weighing?", "tactic": "remove_friction", "mode": "closing", "temperature": 88, "note": "Previous objection (too_expensive) on record — pricing angle avoided" }
Agent: Closing mode, friction-removal tactic. Her previous pricing objection is permanently on record — the AI avoided that angle automatically.
Quick Start
1. Get a backend + operator key
Subscribe at signalpipe.io, sign in to the console with the email you paid with, and create your SIGNALPIPE_OPERATOR_KEY there (it is shown once). The backend URL is https://api.signalpipe.io. No infrastructure to manage.
2. Install
Via OpenClaw:
openclaw plugins install signalpipeor from ClawHub:
openclaw plugins install clawhub:signalpipe
Via MCP (no plugin install): Add the MCP server URL to Claude.ai, Cursor, or Windsurf — see MCP Support above.
3. Set environment variables
export SIGNALPIPE_API_URL=https://api.signalpipe.ioexport SIGNALPIPE_OPERATOR_KEY=your-operator-key
Optional — to run the in-plugin Reddit sender (v2.0): add a Reddit "script" app's credentials (create one at https://www.reddit.com/prefs/apps on the sending account; since November 2025 Reddit reviews new API apps under its Responsible Builder Policy before issuing them). These stay on your machine and are never sent to SignalPipe.
export REDDITOnly the beginning is shown; read the rest in the repo